The Republic of Indonesia is a country in Southeast Asia and Oceania. Indonesia consists of 17,508 islands. It is the fourth most populous country in the world and the most populous Muslim country with a population of around 250 million. Indonesia is built on the Ecuador, from the island of Sumatra to the Australian outcrop. It is surrounded by the Indian Ocean from the west and south, the South China Sea from the north, and the Great Ocean from the northeast.
The five largest islands in Indonesia are: Sumatra, Borneo, Java, Celebes and New Guinea.
Neighbors include; Indonesia is adjacent to Malaysia by sea, East Timor and Papua New Guinea, Christmas Island, India, Philippines, Singapore, Thailand, Vietnam, Australia and Palau. Its capital is Jakarta and its area is 1.919.443 km2;.